Not personally, but you could try the main dealer who may have a software update that could do this for you - (There may be a cost element here) I was able to do the same thing with my autobox on my Saab.
Shift times can be reduced by about 25% with a remap do a Bing search for smart gearbox remaps ( http://www.bing.com/search?q=smart+...=all&pq=smart+gearbox+remap&sc=0-14&sp=-1&sk= ) and do some research on the various companies offering them. I can't personally vouch for any but I know they exist and that these remaps are quite effective.